<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>基础表单</title>
</head>
<body>
  <form>
    姓名：<input type="text" name="username"/>
    密码：<input type="password" name = "paw" />
    <input type="submit">
  </form>
</body>
</html>